Coloring Buttercream Red

I know this has been a topic before, but I don't know what to do. I am trying to get 'bandana' color red. I'm using the wilton buttercream recipe, and I've used 1/2 container of the no taste red, along with mixing other color reds to try and get it dark enough. And I'm having the same problem alot of people have had, it's seperating. I don't know whether to throw it out and start over or what.....red is frustrating! I'm using wilton, Kountry Kitchens, and americolor red. It's still looking a little on the pink side. Is there a better buttercream recipe I can try?

When I make red, I never start with white icing and add red. I make a dark pink icing with pink food coloring, let it stand and mature over night, and then use Americolor Red Red. Let that stand for a while for the color to mature, and you should have a nice vibrant red.